David R. Brennan

Companies

• INSMED IncBoard member Jun 2, 2014 to now¹
• Alexion PharmaceuticalsBoard member Jul 24, 2014 to Jul 23, 2021²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• IINSMED Inc INSM99,238 shares³$9.5M at $95.67Sep 11, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Sep 9, 2026Sold 25,000 shares at $124.00 of INSMED Inc³
• May 13, 2026Granted 3,305 shares of INSMED Inc⁴
• Feb 23, 2026Gift 6,000 shares of INSMED Inc⁵
• Nov 6, 2025Gift 60,000 shares of INSMED Inc⁶
• Nov 6, 2025Gift 60,000 shares of INSMED Inc⁶
• May 15, 2025Granted 5,058 shares of INSMED Inc⁷
• May 13, 2024Granted 13,162 shares of INSMED Inc⁸
• May 11, 2023Granted 13,192 shares of INSMED Inc⁹
• May 11, 2022Granted 14,645 shares of INSMED Inc¹⁰
• Nov 1, 2021Bought 10,000 shares at $30.15 of INSMED Inc¹¹